diff options
Diffstat (limited to 'source/a/eudev/config/rc.d/rc.udev.new')
| -rwxr-xr-x | source/a/eudev/config/rc.d/rc.udev.new | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/source/a/eudev/config/rc.d/rc.udev.new b/source/a/eudev/config/rc.d/rc.udev.new new file mode 100755 index 00000000..aaa1eb15 --- /dev/null +++ b/source/a/eudev/config/rc.d/rc.udev.new @@ -0,0 +1,185 @@ +#!/bin/sh +# This is a script to initialize udev, which populates the /dev +# directory with device nodes, scans for devices, loads the +# appropriate kernel modules, and configures the devices. + +PATH="/sbin:/bin" + +check_mounted() { + grep -E -q "^[^[:space:]]+ $1 $2" /proc/mounts + return $? +} + +mount_devpts() { + if ! check_mounted /dev/pts devpts ; then + mkdir /dev/pts 2> /dev/null + mount -n -o mode=0620,gid=5 -t devpts devpts /dev/pts + fi +} + +mount_devshm() { + if ! check_mounted /dev/shm tmpfs ; then + mkdir /dev/shm 2> /dev/null + mount /dev/shm + fi +} + +case "$1" in + start) + # Sanity check #1, udev requires that the kernel support tmpfs: + if ! grep -wq tmpfs /proc/filesystems ; then + echo "Sorry, but you need tmpfs support in the kernel to use udev." + echo + echo "FATAL: Refusing to run /etc/rc.d/rc.udev." + exit 1 + fi + + # Sanity check #2, make sure that a 2.6.x kernel is new enough: + if [ "$(uname -r | cut -f 1,2 -d .)" = "2.6" ]; then + if [ "$(uname -r | cut -f 3 -d . | sed 's/[^[:digit:]].*//')" -lt "32" ]; then + echo "Sorry, but you need a 2.6.32+ kernel to use this udev." + echo "Your kernel version is only $(uname -r)." + echo + echo "FATAL: Refusing to run /etc/rc.d/rc.udev." + exit 1 + fi + fi + + # Sanity check #3, make sure the udev package was not removed. If udevd + # is not there, this will also shut off this script to prevent further + # problems: + if [ ! -x /sbin/udevd ]; then + chmod 0644 /etc/rc.d/rc.udev + echo "No udevd daemon found." + echo "Turning off udev: chmod 644 /etc/rc.d/rc.udev" + echo "FATAL: Refusing to run /etc/rc.d/rc.udev." + exit 1 + fi + + # Disable hotplug helper since udevd listens to netlink: + if [ -e /proc/sys/kernel/hotplug ]; then + echo "" > /proc/sys/kernel/hotplug + fi + + if grep -qw devtmpfs /proc/filesystems ; then + if ! check_mounted /dev devtmpfs ; then + # umount shm if needed + check_mounted /dev/shm tmpfs && umount -l /dev/shm + + # Umount pts if needed, we will remount it later: + check_mounted /dev/pts devpts && umount -l /dev/pts + + # Mount tmpfs on /dev: + mount -n -t devtmpfs devtmpfs /dev + fi + else + # Mount tmpfs on /dev: + if ! check_mounted /dev tmpfs ; then + # umount shm if needed + check_mounted /dev/shm tmpfs && umount -l /dev/shm + + # Umount pts if needed, we will remount it later: + check_mounted /dev/pts devpts && umount -l /dev/pts + + # Mount tmpfs on /dev: + # the -n is because we don't want /dev umounted when + # someone (rc.[06]) calls umount -a + mount -n -o mode=0755 -t tmpfs tmpfs /dev + fi + fi + + # Mount devpts + mount_devpts + mount_devshm + + if ! /sbin/pidof udevd 1>/dev/null 2>/dev/null; then # start udevd + echo "Creating static nodes in /dev." + kmod static-nodes -f tmpfiles --output /run/static-nodes + grep "^d\ " /run/static-nodes | while read line ; do + mkdir -p -m $(echo $line | cut -f 3 -d ' ') $(echo $line | cut -f 2 -d ' ') + done + grep -v "^d\ " /run/static-nodes | while read line ; do + mknod -m $(echo $line | cut -f 3 -d ' ') \ + $(echo $line | cut -f 2 -d ' ') \ + $(echo $line | cut -b1 ) \ + $(echo $line | cut -f 7 -d ' ' | cut -f 1 -d :) \ + $(echo $line | cut -f 7 -d ' ' | cut -f 2 -d :) 2> /dev/null + done + rm -f /run/static-nodes + # Add any system defined additional device nodes: + cp --preserve=all --recursive --update /lib/udev/devices/* /dev 2> /dev/null + # Add any locally defined additional device nodes: + cp --preserve=all --recursive --update /etc/udev/devices/* /dev 2> /dev/null + echo "Starting udevd: /sbin/udevd --daemon" + /sbin/udevd --daemon + # Since udev is just now being started we want to use add events: + echo "Triggering udev events: /sbin/udevadm trigger --action=add" + # Call udevtrigger and udevsettle to do the device configuration: + /sbin/udevadm trigger --type=subsystems --action=add + /sbin/udevadm trigger --type=devices --action=add + else # trigger changes for already running udevd + # If the persistent network rules file does not exist, trigger an add event: + if [ ! -r /etc/udev/rules.d/70-persistent-net.rules ]; then + # Test that we can actually write to the directory first: + if touch /etc/udev/rules.d/testfile 2> /dev/null ; then + rm -f /etc/udev/rules.d/testfile + # This should add persistent net rules: + echo "Triggering udev to write persistent rules to /etc/udev/rules.d/" + /sbin/udevadm trigger --type=devices --action=add + sleep 3 + # Create the files if they don't exist at this point. + # If a machine does not have a network device or an optical + # device, we don't want to waste time trying to generate + # rules at every boot. + # To force another attempt, delete the file(s). + touch /etc/udev/rules.d/70-persistent-net.rules + fi + fi + # Update the hardware database index (/etc/udev/hwdb.bin), if possible: + if touch /etc/udev/testfile 2> /dev/null ; then + rm -f /etc/udev/testfile + echo "Updating hardware database index: /sbin/udevadm hwdb --update" + /sbin/udevadm hwdb --update + fi + # Since udevd is running, most of the time we only need change events: + echo "Triggering udev events: /sbin/udevadm trigger --action=change" + /sbin/udevadm trigger --type=subsystems --action=change + /sbin/udevadm trigger --type=devices --action=change + fi + /sbin/udevadm settle --timeout=120 + ;; + stop) + echo "Stopping udevd is STRONGLY discouraged and not supported." + echo "If you are sure you want to do this, use 'force-stop' instead." + ;; + force-stop) + echo "Stopping udevd" + udevadm control --exit + killall udevd 2>/dev/null + ;; + restart) + echo "Restarting udevd is STRONGLY discouraged and not supported." + echo "If you are sure you want to do this, use 'force-restart' instead." + ;; + force-restart) + echo "Restarting udevd" + udevadm control --exit + sleep 3 + udevd --daemon + ;; + reload) + echo "Reloading udev rules" + udevadm control --reload + ;; + force-reload) + echo "Updating all available device nodes in /dev" + udevadm control --reload + rm -rf /dev/.udev /dev/disk + cp --preserve=all --recursive --update /lib/udev/devices/* /dev 2> /dev/null + ;; + + *) + echo "Usage: $0 {start|stop|restart|reload|force-reload}" + exit 1 + ;; +esac |